Create Video
Image to Video
Reference to VideoAbout MiniMax H3 X
MiniMax H3 X creates 2–15-second videos with sound from text, an opening image or reference material. Choose 480p, 720p or 1080p, with 720p as the default. Image-to-video also accepts an optional closing frame.
Call it with the model name minimax/h3-x/reference-to-video on POST /jobs/createTask, from $0.11.
Introduction
MiniMax H3 X Reference to video builds one scene from up to 9 images, 2 video clips and 3 voice clips.
Choose a mode by starting material
| What you have | Mode |
|---|---|
| only an idea | MiniMax H3 X Text to video |
| a frame to animate, with an optional closing frame | MiniMax H3 X Image to video |
| people, outfits, places, motion clips or voices | MiniMax H3 X Reference to video |
Key features
Up to 9 images, 2 clips, 3 voices
People, outfits, products and places go in together, a video clip can be a motion template and an audio clip sets the voice.
Two people, both recognisable
Two portraits as references kept both faces in the same scene.
Motion copying
"Recreate the motion of Video 1 with the woman from Image 1" worked.
Request parameters
| Parameter | Required | Description |
|---|---|---|
aspect_ratio | No | The shape of the frame: wide, square or tall. 16:9 · 9:16 · 1:1 · 4:3 · 3:4 · 21:9 · Default: 16:9 |
duration_seconds | No | Length of the generated clip. ≥ 2 · ≤ 15 · Default: 5 |
enable_prompt_expansion | No | Lets the model add detail to a short prompt. Default: false |
prompt | Yes | Describe what you want to make. |
reference_audio_urls | No | Audio to match: a voice, music or a rhythm. |
reference_image_urls | No | Pictures of the people, outfits or places the result should keep. |
reference_video_urls | No | Clips whose motion, camera or style the result should follow. |
resolution | No | Choose an available output size. 480p · 720p · 1080p · Default: 720p |
Pricing
Prices are in USD. The API uses a separate USD balance. Website credits cannot be used or transferred to it, and API funds cannot be transferred to website credits. When a task is accepted, we reserve the maximum quoted amount from your API balance. On completion, we charge for actual usage, never more than the hold, and release the remainder. If the task fails, the hold is released.
| Option | USD per second |
|---|---|
| resolution 480p | $0.022 |
| resolution 720p | $0.032 |
| resolution 1080p | $0.045 |
Send the same request body to POST /jobs/quote to see the estimated and maximum USD charge before running. A quote does not run the task or charge your balance.
Use cases
Fashion and product scenes
A model, a garment and a location in one clip.
Voiced characters
A portrait, a voice clip and a quoted line.
Prompt guide & pro tips
Refer by type and position
Say "the woman from Image 1", "the motion of Video 1", "the voice of Audio 1".
Write the line
A voice clip does not supply words. Put the line in quotes in the prompt.
Split the jobs
Say what to keep from each reference: "keep her face from Image 1, copy only the motion from Video 1".
API quick start
Call the MiniMax H3 X API in three steps
- Create an API key. Sign in to PopNow and create a key in the API console. Keys start with sk-popnow-. API calls use your separate USD balance.
- Send the request. POST /jobs/createTask with model minimax/h3-x/reference-to-video and an input object that follows the parameter table. The response returns a task ID straight away.
- Get the result. Poll GET /jobs/recordInfo with the task ID, or pass a callBackUrl and we post the result to it. Download the output links when the task succeeds.
# 1. Create the task. Keep the Idempotency-Key if you retry after a network error.
export IDEMPOTENCY_KEY="$(uuidgen)"
curl -X POST https://api.popnow.ai/api/v1/jobs/createTask \
-H "Authorization: Bearer $POPNOW_API_KEY" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: $IDEMPOTENCY_KEY" \
-d '{
"model": "minimax/h3-x/reference-to-video",
"input": {
"prompt": "A slow aerial shot drifting over a misty pine forest at sunrise",
"reference_image_urls": [
"https://media.popnow.ai/influencer/examples/ava.webp"
],
"aspect_ratio": "16:9",
"resolution": "720p",
"duration_seconds": 5
}
}'
# 2. Copy data.taskId from the response, then poll until state is succeeded, failed, canceled or expired.
TASK_ID="TASK_ID_FROM_RESPONSE"
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=$TASK_ID" \
-H "Authorization: Bearer $POPNOW_API_KEY"Replace the prompt and any links with your own. The API tab has the response, polling and callback reference.
MiniMax H3 X API questions
How much does the MiniMax H3 X API cost?
MiniMax H3 X starts at $0.11 for a 5-second clip with Reference to Video, its cheapest task. Prices by option: 480p $0.022 per second, 720p $0.032 per second, 1080p $0.045 per second. The API uses a separate USD balance. When a task is accepted, we reserve the maximum quoted amount from your API balance. On completion, we charge for actual usage, never more than the hold, and release the remainder. If the task fails, the hold is released.
What are the limits of the MiniMax H3 X · Reference to Video API?
Clip length: 2–15 s; Resolutions: 480p · 720p · 1080p; Aspect ratios: 16:9 · 9:16 · 1:1 · 4:3 · 3:4 · 21:9; Reference audio: 3; Reference images: 9. Requests outside these limits are rejected before anything is charged.